[CentOS 7] net-tools

ifconfig, netstat 명령어가 작동하지 않을때 : net-tools 미설치

[root@web ~]# rpm -q net-tools
package net-tools is not installed

[root@web ~]# ifconfig
-bash: /sbin/ifconfig: No such file or directory

[root@web ~]# netstat
-bash: netstat: command not found

net-tools 설치

yum -y install net-tools

[root@web ~]# netstat
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 web:41256               *:http         		  TIME_WAIT
tcp        0      0 web:38404               *:http    			  TIME_WAIT
tcp        0      0 web:38414               *:http    			  TIME_WAIT
tcp        0      0 web:ssh                 *           		 ESTABLISHED
tcp        0      0 web:41258               *:http         		  TIME_WAIT
tcp        0      0 web:34580               *:http   			  TIME_WAIT
Active UNIX domain sockets (w/o servers)
Proto RefCnt Flags       Type       State         I-Node   Path
unix  2      [ ]         DGRAM                    18202    /var/run/chrony/chronyd.sock
unix  3      [ ]         DGRAM                    7266     /run/systemd/notify
unix  2      [ ]         DGRAM                    7268     /run/systemd/cgroups-agent
unix  5      [ ]         DGRAM                    7279     /run/systemd/journal/socket
.
.
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[root@web ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.2.15  netmask 255.255.255.0  broadcast 10.0.2.255
        inet6 fe80::5054:ff:fe8a:fee6  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:8a:fe:e6  txqueuelen 1000  (Ethernet)
        RX packets 10243  bytes 9228468 (8.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3025  bytes 295006 (288.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 32  bytes 2592 (2.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 32  bytes 2592 (2.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0